Asjighor



Dec. 24, 1929.

.1. IRONSIDE 1,740,943

COLLAPSIBLE STOVE STRUCTURE Filed J 1 1 1928 4 Sheets-Sheet 1 I N V ENTOR.

O o 125m fins/d A TTORNE Dec. 24, 1929. J. IRONSIDE COLLAPSIBLE STOVESTRUCTURE Fi y 1 928% 4 Sheets-Sheet 2 EINVENTOR ams flan- 14a A ORNEY.

Dec. 24, 1929. J. IRONSIDE 1,740,943

COLLAPSIBLE STUVE STRUCTURE Filed July 14, 1928 4 Sheets-Sheet 3 MM. M

A TTORNEY Dec. 24, 1929. J. IRONSIDE COLLAFSIBLE STOVE STRUCTURE FiledJuly 1928 4 Sheets-Sheet 4 z H K INVENTOR. 7672765 Iwnel'de BY A /i W WATTORNEY.

Patented Dec. 24, 1929 UNETED STATES PATENT OFFICE JAMES IRONSIDE, 0FDETROIT, MICHIGAN, ASSXCINOR, BY MESNE ASSIGNIMENTS, TO CLAYTON &LAIVIBEBT MANUFACTURING COMPANY, OF DETROIT, MICHIGAN, A

CORPORATION OF DELAWARE COLLAPSIIBLE STOVE STRUCTURE Application. filed.July 14, 1928. Serial No. 292,840.

This invention relates to collapsible stoye structure, and has to doparticularly with stoves of the liquid fuel type.

The present invention contemplates the provision of a collapsible stovestructure particularly adaptable to stoves of the oil and gasoline typehaving a slidahle generator and fuel supply unit. More specifically,this novel stove structure comprises a compact, extremely simple,unitary stove structure, various parts of which are foldahle and sodesigned as to cooperate with other parts in a novel manner, whereby tomake the stove structure easily set up or collapsible with the use of aminimum number of parts.

A further feature of the invention has to do with a novel combinationbetween a fold able wall of the stove casing and the fuel supply unitfor the burners, said foldable wall serving two functions, one to permitmovement of the fuel supply unit to its proper position away from themixing chamber, and two, to serve as a support and positioning means forsuch fuel supply unit.

Other features of this invention reside in the novel supporting frame orleg structure, which in combination with the novel design of the stovecasing permits such legs to be easily folded within the general plane ofthe stove casing.

In the drawings:

Fig. 1 is a plan view of a collapsible stove structure constructed inaccordance with the present invention.

Fig. 2 is a longitudinal sectional view taken on line 22 of Fig. 1, andillustrating the relation of the various parts of the stove structurewhen in set up position.

Fig. 3 is a fragmentary sectional view of one end of the stove casing,showing the fuel supply unit and adjacent parts of the stove casing incollapsed folded position.

Fig. 4 is a side elevation of the stove structure when the same isfolded up and ready to be carried, showing in particular the position ofthe leg members when in folded position.

Fig. 5 is a sectional view taken partly on line 5-5 of Fig. 1.

Fig. 6 is a sectional view taken on line 66 of Fig. 1, and showing inparticular the areaate shield for the fuel supply tank and the manner ofpositioning the end wall of the stove casing when in supportingposition.

Although the novel features of the stove structure of the pres ntinvention may be embodied in connection with various types of burnerstructure, the present cmbmlinicnt is illustrated in connection withliquid fuel burners of the type having a reciprocablc fuel supply unitincluding a generating tube.

In Figs. 1 and Q I have illustrated a twoburner starting and generatingapparatus of the general type described in the copending application ofClarence l3. Overly. Serial No. hi'TAll-Tl, filed May 14-, 1928. Thisburner structure comprises a mixing chamber 1 which in turn is providedwith a pivoted cap 2 and is in direct communication as at 3 with amanifold l which leads directly to the burners 5 and 6.

A starting member 7 is preferably positioned in alignment with themixing chamber 1 and the head of the mixing chamber 1 is apertured toreceive a suitable reciprocablc generating tube 8 which in turn isrigidly secured to a suitable supply tank 5.). The generator tube 8 andthe supply tank 9 are adapted to be moved as a unit to and from themixing chamber. It will be obvious that the generator tube 8 is movedduring the inward movement of said liquid supply tank and will be movedthrough the mixing chamber 1 and in contact with the valve member 2. 1nstarting the stove. the generator tube is adapted to he moved throughthe mixing chamber 1 to first raise the valve member 2 and then take aposition adjacent the end of the memher T whereby vaporized fuel issuingfrom the jet block of the generator tube will strike the deflectormember 7 and will be directed in the form of a blast of flame backagainst the generator tube 8 to accelerate starting thereof. Suchstarting position of the generating tube is best shown in Fig. 3.

As will be obvious from Fig. l, the generator tube is adapted to bereciprocated in alignment with the two burners 5 and G. For thispurpose, the end wall of the stove casing which may be designated 10, ispreferably separate from the remainder ol the casing but pivoted to theside walls thereot as at ll. This end wall of the casing is providedwith suitable arcnate flanges 12 which are turned inwardly at rightangles to the wall ll). A. suitable bar 13 is adapted to extend acrossthe end of the casing above the pivoted wall ll). This bar serves as areinforcing member and also serves as a pivot for one end of the coveras shown at. 14 in Fig. 1.

One end of each arcuate flange til is provided with a suitable laterallyextending member 15 which adapted to contact with the cross bar 13 whensaid end all is lowered to the position shown in Fig. 3. lVhen theportions 15 of the flanges 12 strike the cross bar 13 the end wall lllot the casino will be positioned in alignment with a portion it of thebottom of the casing.

The slidable fuel supply unit consisting of the generator tube 8 andtank $3 is adapted to he guided and positioned by the end wall ll] whenmoved to the positicn shown in Fig. 2. As best shown in Figs. 1 and 6the end 'all 10 is provided with a centrally positioned groove orguideway 17, and the tanl: i) is preferably provided with a. member 1bwhich is preferably of the approximate width of the guideway 17 andadapted to he guided thereby.

The bottom of the stove casing is inwardly depressed or formed wherebyto provide a. bottom wall 19 which is higher than the bottom 16. One endof the side wall Formed by the bottom depression preterabry formed at anangle as indicated at 20 for a purpose to he later described and thedistance of the wall Llf) from the end of the casing is sutlieieut toprovide room for the supply tank when moved to its collapsed positionwithin the casing. as shown in Fig. 3. A suitable arcuately shapedshield 21 is pivotally sup ported by the cross bar '13 whmehy the samemay be positioned in two positions. one as shown in Fig. 2. and theother as shown in Fig. 2). This shield is not necessary tor thesuccessful operation ot the stove. but is more or less of a precautimiary nature to shield the supply tank 9 from the heat of the burners.suitable slot 22 is 'l'm'med in this shield whereby to receive thegenerator tube.

The correct position between the jet block of the generator tube and theentranee head of the mixing chamber is approximately that shown in Fig.2. and to maintain this position the end wall 11) is preterably providedith a suitable positioning pin 23 which is adapted to register with a.suitable aperture ill in the guide 18. The end of the guide to ispretcrably upturned and the fuel tanl; U and generator tube is treelymoved outwardly as a unit so that the guide 18 will ride upon the pin 23whereby to permit registration of the aperture it therewith.

.It will be understood that the 'l'nel supply unit is freely movable andthat the entrance head oil the mixing chamber serves only as a guide forthe generating tube. hen the fuel supply unit is moved outwardly towardsthe position shown. in Fig. 1, such unit may be bodily lifted so as toeasily cause cooperation between the pin 23"; and aperture 24;. Thebottom wall lb of the stove casing is provided with another pin 23 whichis positioned centrally ot' the easing and is adapted to Contact withthe end o I: the guide in when. the fuel supply unit is moved within thecasing to starting or collapsed position.

hen the fuel supply unit. is moved inwardly to starting position thecontact between the guide ltl and the pin 25 will insure the correctpositioning between the end of the generator 25 and the dellector orstarting member 7. There is no guidcway formed in the bottom lb of thecasing, as this is not necessary.

The pivoted top o l the casing may he generally designated :26 and suchtop preterahly provided with three inwardly extending flanges, two atthe ends as at 27 and 28. and the other at the front as at 29. Theflange 28, which is adapted to extend paral lel with the bar 3 when suchcover is closed, is so spaced from such bar 13 that when the end wallll] is moved to the position shown in Fig. 3, the flange 28 will be onthe outside of the upper edge of said plate 1.0. In other words, whenthe plate ll) has been moved to the position shown in Fig. El thedownward movement of the top 26 to close the case will cause the flange28 to fall to the outside of the end plate 10 and thus clamp the same inassembled position.

The bottom of the casing is preferably provided with the openings 3t!and 31, as best shown in Fig. 1. whereby to receive the end portions 15of the flanges 12 when the end wall is moved to its collapsed position.shown in Fig. The ends it oi the llanges 12 are slightly bent as shownin Figs. 4 and 6 so as not to conflict with the leg members.

The top 26 is preferably pivoted to the easing by means of the flanges27 and 28. the flange 27 being connected at its inner end to thepermanent end wall of the stove casing. and the flange 28 being pivotedat its inner end to the crossbar 13. By this arrangement, the back edgeot' the top 26 may he positioned very close to the back wall 371 of thestove easing whereby when the back edge #32 eontaets with the all Elilit will serve as a stop so as to support the top at; in an openposition. One eorne 3t of the end wall 10 is cut away so as to providefor the pivot between the flange 28 and the bar 13.

As the generating and burner structure is not as high as the fuel supplyunit. which comprises the tank 9 of the generator 8. the bottom of thestove casing is recessed as previously described. One end of the hottomof the casing, which is not recessed, is of such size, as shown in Fig.3, to serve as a chamber for receiving the tank 9 when the same is movedto collapsed position. The other end wall of the depressed portion ofthe bottom of the casing and designated is preferably formed at the sameangle as the end wall 20. This end wall 35 is spaced from the end wallof the stove casing but this spacing is not for the reception of anyarticle but merely to so locate the wall 35 as to position the legmembers.

As best shown in Fig. 4 the stove is provided with two leg members whichmay be designated 36 and 37, and each comprising off-set portions toform spaced contact menu bers 38 and 39. The inturned leg portions ofeach member 36 and 37 are riveted as at 40 and 411 to the front and bacxwalls of the stove casing. The riveting or securing of the leg membersto the walls of the casing is as to produce friction between the in-tur:portions of the leg members and the w: of the casin The bottom edge ofthe front and b: c Walls of the casing are inturned as at i2 um 43, suchinturned edges being positioned lie-- low the normal collapsed po itionof the leg members, as best shown in Figs. 3 and 5. to serve as frictionretainers for" the leg members so as to normally retain them in foldedposition. The friction produced by the riveting or securing of the legmembers is preferably suflicient to keep the same in eoliap-ied positionsuch as shown in Fig. 3 and the inturned portions 42 and 4S serve asulditiomil friction members and prevent accidental unfolding of the legmembers.

In order to set up the stove. the leg menu hers 3G and 37 may be movedto the position shown in Fig. whereby they will contact with the walls20 and which serve as stops for positioning the leg members, theinturned portions 42 and also assisting to frictionally maintain thelegs in their adjusted position. It will thus be seen that I haveprovided a novel stove easing which may be completely collapsed andfolded up and the leg members of which are not only designed to befolded within the confines of the casing but which are also extremelysimple and compact in design and operation.

The pivoted top member is provided with two plates or shields 45 and 46which are hinged to the top 26 by means of suitable hinge members 4?which are preferablv spot welded to the top as best shown in Fig. henthe shields 45 and 46 are not used the top 28 sets farther back than inthe normal position shown in Fig. 6. lVhen the shields are used, the top28 will preferably be held appro imately vertical and will be support edin such position by the contact between the shields and the stovecasing.

l' hat I claim is:

E -h red 1. A stove structure, comprising a casing, a burner structureof the two-burner type positioned within the casing, a fuel supply unitcomprising a tank and a generator tube secured thereto, said generatortube being slidahle longitudinally relative to one of said burners, onewall of said casing being movable to a position substantially inalignment with the bottom of the casing to receive and support saidunit.

2. A stove structure comprising a casing, a burner structure of thetwo-burner type positioned within the casing, a fuel supply unitcomprising a tank and a generator tube secured thereto. said generatortube being slidable longitudinally relative to one of said burners onewall of said casing being movable to a. position substantially parallelwith the bottom of the casing to receive said fuel supply unit. and agroove formed in said unwable wa l for cooperating with a portion ofsaid fuel supply unit for guiding the same.

3. A store structure, comprising a casing, a burner structure of thetwo-burner type positioned within the casing, a fuel supply unitcomprising a tank and a generator tube cured tlureto. said generatortube being tie to a position substantially parallel with the bottom ofthe casing to receive said fuel supply unit and means on said movablewall for cooperating with a portion of the fuel supply unit to positionthe generator tube relative to the burner.

4. Stove construction, comprising a casing, burner structure positionedtherein including a mixing chamber and a preheating member, a. fuelsupply unit including a tank and a generator tube, said generator tubebeing movable relative to said mixing chamber and said preheating memberwhereby to cooperate with said preheating member for starting and withsaid mixing chamber for normal operation, a portion of said casing beingmovable outwardly to a position approximately at right angles to itsnormal position. said fuel supply unit being positioned completelywithin the stove casing in one position and being supported by saidmovable portion of the casing when in normal operating position.

5. Stove construction. comprising a cas ing burner structure positionedtherein including a mixing chamber and a preheating member, a fuelsupply unit including a tank and a generator tube, said generator tubebeing movable relative to said mixing chamber and said Ineheating memberwhereby to cooperate with said preheating member for starting and withsaid mixing chamber for norn'ial operation. a portion of said casingbeing movable outwardly to a position approximately at right angles toits normal position, said fuel supply unit being positioned andsupported by said movable portion of the casing when in normal operatingposition, said movable portion of the casing being provided with flangeshaving offset portions adapted to contact with a portion of the casingwhereby to position said movable wall to receive and support said fuelsupply unit.

(3. Stove constriu-tion, comprising a casing, burner structurepositioned therein, a fuel supply unit comprising a tank and generatortube, said generator tube being movable relative to the burner wherebythe supply unit may be moved inwardly to starting position and outwardlyto normal operating position, an end all of said casing being movableoutwardly to a position substantially in alignment with a portion of thebottom o the casing whereby to receive and support said fuel supply unitwhen in normal operating position.

7. Stove construction comprising a casing, burner structure positionedtherein, a fuel supply unit comprising a tank and generator tube, saidgenerator tube being movable rel ative to the burner whereby the supplyunit may be moved completely within the ca, ing when in collapsedposition and exteriorly of the casing when in normal operating position.an end wall of said casing being niov able outwardly to a positionsubstantially in alignment with a portion of the bottom of the casingwhereby to receive and support said fuel supply unit when in normaloperating position, and means forming a part of said casing andcooperating with said fuel supply unit for positively positioning thesame in two separate positions.

8. Stove construction, comprising a fold able casing, burner structuremounted therein, a fuel supply unit comprising a tank and a generatingtube, said unit being movable to two positions relative to said burnerstructure, said fuel supply unit in one of its positions beingcompletely positioned within the folded up casing, one wall of saidcasing being pivoted adjacent its bottom and being movable outwardlywhereby to receive and support said fuel supply unit in its otherposition.

9. Stove construction, comprising a foldable casing. burner structuremounted therein. a fuel supply unit comprising a tank and a generatingtube, said generating tube being movable to two positions relative tosaid burner structure, said fuel supply unit in one of its positionsbeing completely positioned within the folded up casing, one wall ofsaid casing being movable outwardly whereby to receive and support saidfuel supply unit in its other position, said casing being provided witha cover having a flange adapted to cooperate with and position saidmovable asing wall in normal folded posi tion.

10. Steve construction, comprising a casing, burner structure positionedtherein, a movable fuel supply unit, a portion of one side wall of saidcasing being movable outwardly to a position for receiving andsupporting said fuel supply unit, and a cover for said casing, saidmovable wall of the casing being held in normal folded position by saidcover when the same is folded to close the casin 11. Stove construction,comprising a casing, burner structure positioned therein, a movable fuelsupply unit. one of the walls of said casing being movable for receivingand supporting said fuel supply unit, a cross bar extending across thetop part of the open part of the stove asing formed by said movablewall, and a cover for said casing having flanges, said cover beingpivotally mounted upon the casing by pivotal connections between one endof the casing and one flange on the cover, and between said cross barand the other flange on the cover 12. Store construction, comprising acasing, burner structure positioned therein, a movable fuel supply unit,one of the walls of said lasing being movable for receiving andsupporting said fuel supply unit, a cross bar extending across the toppart of the open part of the casing formed by said movable wall, a coverfor said casing having flanges, said cover being pivotally mounted uponthe casing by pivotal connections between one end of the casing and oneflange on the cover and between said cross bar and the other flange onthe cover, said movable wall of the casing being held in normal foldedposition by means of the flange on said cover when said cover is movedto closed position.

l3. Stove construction, comprising a casing having a recessed bottom, aburner and mixing chamber positioned on said bottom, said recessedportion having an end wall, a fuel tank movable to a position in thebottom of the casing between said end wall and a wall of said casing,leg members pivotally connected to said casing beneath said recessedbottom by a pivotal connection between the ends of the leg members andopposite walls of said casing, whereby said legs will be completelyfolded within said recess and one of said legs will contact with saidend wall when unfolded.

14. Stove construction, comprising a cas ing having a recessed bottom, aburner positioned on said bottom, said recessed portion having endwalls, a fuel tank adapted to be positioned in the space bet ween one ofsaid end walls and a wall of said "asing and having a generator tubepositioned above srf l burner, leg members pivotally connected to saidcasing by a pivotal connection between the ends of the leg members andopposite walls of said casing whereby said legs will be completelyfolded within said recess, said legs being movable to a position outsidethe recess for supporting the casing and adapted to contact with thewalls of said recess for limiting their outward movement.

15. Stove construction, comprising a casing, the bottom thereof beingrecessed, burner structure positioned on the top of said recessedportion, a fuel supply unit including a tank and generator tube, saidtank being positioned between an end wall of said recess and a wall ofsaid casing and said tube being slidable in a plane above said burnerstrum ture, and leg members pivotally mounted and foldable within saidrecess and movable to an outward position in contact with end walls ofsaid recess for supporting said casing.

16. Stove construction, comprising a casing having two side walls andtwo end walls the bottom of said casing being recessed between the twoend walls. a burner positioned within the casing, a movable fuel supplvunit including a tank, one of the end walls or said casing being movableoutwardly for receiving and supporting said fuel supply unit, said fuelsupply unit being movable to a position within the casing between theend wall of said recessed portion and said movable wall when folded up,and leg members posi tioned within said recessed portion and piv- 30otally mounted to the said walls of said casing whereby the legs when infolded up position will be positioned between the plane of the bottom ofthe casing and the top thereof. In testimony whereof I aflix mysignature.

JAMES IRONSIDE.

